Electron capture and loss by kilo-electron-volt oxygen atoms in collisions with He, H₂, N₂, and O₂

B. G. Lindsay, W. S. Yu, K. F. McDonald, and R. F. Stebbings

Phys. Rev. A 70, 042701 (2004)

Absolute differential cross sections are reported for electron capture and loss
by 1-5 keV oxygen atoms incident on He, H₂, N₂, and O₂
for scattering angles between 0.02° and 1.73° in the laboratory
frame. The form of the differential cross sections is seen to vary significantly
with energy and between different targets. Differences between the present O-atom
electron-loss cross sections and those for H-atoms reported previously imply
that the underlying physical mechanism may not be the same. The integral cross
sections, also reported here, are consistent with most previous studies. The
consensus of the available electron-loss data suggests that the cross sections
of Fogel et al.[Soviet Phys.-JETP 35, 601 (1959)] are in error.